Dspic can't find UART Bus pirate Bootloader

Topic: Dspic can't find UART Bus pirate Bootloader (Read 14158 times) previous topic - next topic

Re: Dspic can't find UART Bus pirate Bootloader

Reply #15 – September 25, 2011, 11:24:34 am

DS30 again showing errorous information. It shows,

Searching for bl . 
Found PIC24HJ128GP502 fw ver. 9.9.9
Wrong pic detected(66)/selected(212), aborting

My pprogramming is verified by Pickit2 twice.

Re: Dspic can't find UART Bus pirate Bootloader

Reply #16 – September 25, 2011, 11:27:52 am

No, usually the VREG should never be on. It is held low with an internal pullup resistor on the power supplies.

Re: Dspic can't find UART Bus pirate Bootloader

Reply #17 – September 25, 2011, 11:28:31 am

Since you programmed the combo, why not just connect with a terminal?

Re: Dspic can't find UART Bus pirate Bootloader

Reply #18 – September 25, 2011, 11:42:35 am

FINALLYYYYYYYYYYY
Buspirate is Live

This is the terminal talk to Buspirate.

Code: [Select]

HiZ> ~
Disconnect any devices
Connect (Vpu to +5V) and (ADC to +3.3V)
Space to continue
Ctrl
AUX OK
MODE LED OK
PULLUP H OK
PULLUP H OK
VREG OK
ADC and supply
5V(5.03) OK
VPU(5.02) OK
3.3V(3.31) OK
ADC(3.30) OK
Bus high
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 0
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 1
MOSI FAIL
CLK OK
MISO OK
CS OK
MODE and VREG LEDs should be on!
Any key to exit
Found 1 errors.
HiZ> i
Bus Pirate v3b
Firmware v5.3 (r440) Bootloader v4.4
DEVID:0x0447 REVID:0x3046 (B8)
http://dangerousprototypes.com
HiZ>

Can anyone tell me why is the error that showed up as "Found 1 errors." (MOSI FAIL at BUS Hi-Z 1)?
Let me mention that my board still lacks the CD4066 IC. Is this for that?
And yes, just the Tx and Rx worked with my USB to TTL and RS232 board this time.
[attachment=0]000_0033[1].JPG[/attachment]

Re: Dspic can't find UART Bus pirate Bootloader

Reply #19 – September 25, 2011, 11:59:12 am

Yes, the 4066 provides the power for the pullup resistors. They hold the bus high during the hi-z test.

Re: Dspic can't find UART Bus pirate Bootloader

Reply #20 – September 25, 2011, 01:51:25 pm

I've corrected the error. Actually R5 was missing, maybe dropped while I was forcibly brushing board with IPA. I've put a 2K2 in R5, and it's OK now.

Code: [Select]

HiZ> ~
Disconnect any devices
Connect (Vpu to +5V) and (ADC to +3.3V)
Space to continue
Ctrl
AUX OK
MODE LED OK
PULLUP H OK
PULLUP H OK
VREG OK
ADC and supply
5V(4.99) OK
VPU(4.97) OK
3.3V(3.31) OK
ADC(3.30) OK
Bus high
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 0
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 1
MOSI OK
CLK OK
MISO OK
CS OK
MODE and VREG LEDs should be on!
Any key to exit
Found 0 errors.

I conclude that BP selftest feature is unable to detect the absense of CD4066.
These are pictures of my setup. It will be a standalone board after I get the FT232 and 4066 from element14. Till then, it will be as a combined product.

[attachment=0]000_0035[1].JPG[/attachment]

[attachment=1]000_0034[1].JPG[/attachment]

Re: Dspic can't find UART Bus pirate Bootloader

Reply #21 – October 09, 2011, 10:32:36 am

Finally my BP is now complete.[attachment=0]000_0003[1].JPG[/attachment]

Code: [Select]

Bus Pirate v3b
Firmware v5.3 (r440) Bootloader v4.4
DEVID:0x0447 REVID:0x3046 (B8)
http://dangerousprototypes.com
HiZ> ~
Disconnect any devices
Connect (Vpu to +5V) and (ADC to +3.3V)
Space to continue
Ctrl
AUX OK
MODE LED OK
PULLUP H OK
PULLUP H OK
VREG OK
ADC and supply
5V(5.01) OK
VPU(5.00) OK
3.3V(3.28) OK
ADC(3.28) OK
Bus high
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 0
MOSI OK
CLK OK
MISO OK
CS OK
Bus Hi-Z 1
MOSI OK
CLK OK
MISO OK
CS OK
MODE and VREG LEDs should be on!
Any key to exit
Found 0 errors.
HiZ>

Re: Dspic can't find UART Bus pirate Bootloader

Reply #22 – October 10, 2011, 11:50:29 am

Nice job, thanks for sharing! It looks like you have firmware v5.3 installed, but sure to upgrade to v5.10 (I think you already did in another thread).